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21951 (1999 VE159)
Classification: Main-belt Asteroid          SPK-ID: 2021951
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05056258780364108 4.9107e-08  
a 3.074049688450466 2.014e-08 au
q 2.918617781165433 1.5213e-07 au
i 5.825410239463016 3.7316e-06 deg
node 240.2808432544518 5.2741e-05 deg
peri 289.0468073792055 6.7827e-05 deg
M 201.2227556434604 4.6377e-05 deg
tp 2460068.761433747357
(2023-May-04.26143375)
0.00025833 TDB
period 1968.632957548708
5.39
1.9347e-05
5.297e-08
d
yr
n .1828680143851005 1.7971e-09 deg/d
Q 3.229481595735498 2.1158e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1295  
   data-arc span      9097 days (24.91 yr)  
   first obs. used      1996-03-13  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50856  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:56:12  

Additional Information
 Earth MOID = 1.93013 au 
 Jupiter MOID = 1.78136 au 
 T_jup = 3.220 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9   n/a MPO358838  

21951 (1999 VE159)          Discovered 1999-Nov-14 by LINEAR at Socorro
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 VE159 = 1996 EH12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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